Benzylisoquinolines ; therapeutic use ; Calcium Channel Blockers ; therapeutic use ; Combined Modality Therapy ; Humans ; Pneumoconiosis ; drug therapy ; Tablets

Objective:To study the change of Porphyromonas gingivalis (P.gingivalis) in rat gingival crivicular tluid (GCF) under chronic intermittent hypoxia.Methods:32 male SD rats were randomly divided into 4 groups (n =8):normoxia control group (A),normoxia with periodontitis group (B),intermittent hypoxia group(C),and intermittent hypoxia with periodontitis (D).Periodontitis model was established by orthodontic silk ligation at the maxillary second molar neck and high sugar diet.The rats in normoxia and hypoxia group were raised respectively under the condition of ordinary oxygen and chronic intermittent hypoxia respectively.After 8 weeks,GCF of the target teeth was collected,P.gingivalis was quantified by real-time fluorescent quantitative PCR.Results:P.gingivalis was detected in all groups.P.gingivalis in group D was more than in other groups(P ＜0.05);meanwhile,P.gingivalis in group B was more than in group A(P ＜0.05).Conclusion:Chronic intermittent hypoxia can aggravate the severity of periodontitis,which is associated with the increase of P.gingivalis in GCF.

Objective:To evaluate the diagnostic values of single and combined detection of serum CA199, complement 3 (C3),complement 4 (C4),total cholesterol (TC),triglyceride (TG),and lipid metabolism levels in the patients with pancreatic cancer, and to explore their correlations with TNM stage and pathological stage of pancreatic cancer.Methods:Total 185 subjects were enrolled into the study by three groups:pancreatic cancer patients group (Pc group,n=77),non-digestive system cancer patients group (Ndc group,n=58)and healthy control group (Hc group,n=50).The levels of serum CA199,C3,C4,and high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), apolipoprotein A (ApoA), apolipoprotein B (ApoB), apolipoprotein E (ApoE),and lipoprotein a (Lpa)levels were detected.Results:① The serum level of CA199, C3,C4,and ApoE of the patients in Pc group were higher than those in Ndc and Hc groups (P<0.01).No statistical difference was observed in the serum CA199 between Ndc and Hc groups (P>0.05).The levels of C3, C4,and ApoE in Pc group and Ndc group was higher than those in Hc group (P<0.01),and the levels of the biomarkers in Pc group were also higher than those in Ndc group (P<0.01).The levels of HDL-C,ApoA and Lp (a)of the patients in Pc group were significantly lower than those in Ndc and Hc groups (P<0.05).② The area under ROC curve (AUC)of serum CA199,C3,C4,ApoE,HDL-C,and ApoA were 0.916,0.841, 0.788,0.785,0.834,and 0.810,respectively.Furthermore,multiple factor analysis showed that the combined detection of CA199,C3,and HDL-C (AUC=0.968)improved the diagnosis compared with detecting CA199 alone (P<0.05).③ The CA199 level of the patients inⅢ-Ⅳ stage of TNM stage was higher than that in the patients inⅠ-Ⅱ stage (P<0.01).For the pathological stage,the ApoA level in low differentiation group was higher than that in moderate and high differentiation group (P<0.05).There was no statistical difference in other biomarkers between the different TNM stages and pathological stages.Conclusion:The levels of CA199,C3,C4 and ApoE of pancreatic cancer patients are significantly increased, while the levels of HDL-C, ApoA, and Lp (a ) are significantly reduced.Combined detection of CA199,C3,and HDL-C can improve the early diagnosis of pancreatic cancer compared with the single assessment of each biomarker.

BACKGROUND: Ligustrazine inhibits discharge of cerebral hippocampal neuron, penetrates blood-brain barrier effectively after absorbed in the body and is distributed extensively in cerebral cortex, brain stem, striate body, hippocampus, cerebellum and midbrain.OBJECTIVE: To probe into the influence of ligustrazine and its different concentrations after abdominal injection on cerebral cortical neural cell structure in epileptic rats induced by penicillin.DESIGN: Randomized control experiment.SETTING: Physiological Department of Xianning Medical College.MATERIALS: The experiment was performed in Anatomy Department of Tongji Medical College of Huazhong University of Science and Technology from September 2004 to March 2005. Forty healthy SD rats of clean grade were employed, of either sex, mass weighted varied from 200 to 250 g.They were randomized into 5 groups, named operation control, penicillininduced epilepsy group and ligustrazine groups of 10 mg/kg, 20 mg/kg and 40 mg/kg, 8 rats in each group.METHODS: After anesthetized, the cranium was opened to expose cerebral cortical record region. BL-410 biofunctional experimental system was used to record brain electricity bilaterally and epileptic discharge of cerebral cortex in penicillin-induced epilepsy group and ligustrazine groups of 10 mg/kg,20 mg/kg and 40 mg/kg. In the control, 1 hour after anesthesia and craniotomy, cerebrum was collected. In penicillin-induced epilepsy group, 1 hour after induction, cerebrum was collected. In ligustrazine groups of 10 mg/kg,20 mg/kg and 40 mg/kg, after penicillin-induced epileptic discharge was stable, ligustrazine of 10 mg/kg, 20 mg/kg and 40 mg/kg was injected abdominally successively, and cerebrum was collected when the most remarkable inhibition was achieved. Brain tissue section was prepared separately, with HE staining, the observation was done under optic microscope.MAIN OUTCOME MEASURES: Structure changes in cerebral cortical neural cells in rats of each group.In the control, the morphological structure of cerebral cortical neural cell alternations on cerebral cortical neural cell structure, karyopykosis, plasmarrhexis and vacuolar structure, but there was no Nissel bodies in cytomarrhexis, vacuolar structure and decreased Nissel bodies in cytoplasm with the control, there were decreased vacuoles in neural cell, increased cytoplasm and few Nissel bodies in cytoplasm and cell structural morpholcontrol, karyon was big, round and light stained; clot-like Nissel bodies were visible and cell structural morphology was in tendency to be normal.CONCLUSION: In penicillin-induced epilepsy, morphological structure of cerebral cortical neural cell in rats is abnormal. Tetramethylpyrazine of various dosages may improve at different degrees morphological structure of cerebral cortical neural cell, especially significantly at high dosage, by which, its inhibition on epileptic discharge in rats is achieved.

Objective To compare the cervical intervertebral movements produced by posteroanterior cervical mobilization and posteroanterior cervical mobilization combined with cervical traction by using the radiographic measurement.Methods The study recruited 12 normal volunteers (6 men,6 women),aged 18 to 25 years (22.9±4.7 years),heighted (164± 7)cm and weighed (54.7 ± 7.6)kg.All the subjects were administered with posteroanterior cervical mobilization followed by posteroanterior cervical mobilization while having cervical traction,or vice versa,with an interval of 2 days in between.The X-ray films were collected before and after the treatment,using 4 static cervical lateral views.The axial displacement of posterior and anterior intervertebral separation (IVS),and the shear displacement of vertebral body as well as the rotation and displacement rate of the motion segments in the sagittal plane before and after the treatment were measured on the radiographic images and compared.Results It was shown that the posteroanterior cervical mobilization produced greater C2-C7 rotation range of motion in the sagittal plane,as compared to that by the posteroanterior mobilization while having cervical traction (P ＜ 0.05).The posteroanterior mobilization produced a significantly greater increase of anterior IVS of the C5 segment and the summation of C2-C7 posterior IVS than those by posteroanterior mobilization while having cervical traction (P ＜ 0.05).However,the posterior IVS and the posterior zygapophysial joints separation of C2-C7 produced by the posteroanterior mobilization during traction were more prominent (P ＜ 0.05).There was no statistical difference between anteroposterior displacements of the vertebral body produced by the two interventions.Comparing with the baseline,the posteroanterior mobilization caused posterior movement of the vertebral bodies of C5 to C2,while the posteroanterior cervical mobilization during traction produced posterior movement of C5 to C2 vertebral bodies and anterior movement of C6 body.Conclusion The cervical posteroanterior mobilization significantly increased the lordosis from C3 to C7,and reduced posterior IVS and zygapophysial joints separation.However,the posteroanterior mobilization during traction changed the intervertebral movements.

This study examined the association of problem behavior with neurotransmitter deficiency in adolescents, which would provide new insights into behavioral problems. A total of 1259 students of the seventh grade from 4 middle schools in Wuhan city located in the central China were recruited. With the approval of school and parents, they were invited to complete the Youth Self-Report (YSR) questionnaire and Symptom Scale of Neurotransmitter Deficiency (SSND) questionnaire. Pearson's bivariate correlation analysis showed that the correlation coefficients between each subscale of YSR and SSND ranged from 0.24 to 0.61 with all P<0.01. Canonical correlation analysis indicated that anxiety/depression was interrelated with insufficiency of GABA and 5-HT; aggressive behavior was associated with inadequate GABA; famine of DA influenced the attention problems. It was concluded that neurotransmitter deficiency may cause a series of behavioral and mental problems.

AIM: To study the expression of type Ⅰtransforming growth factor ?(T?R-Ⅰ)in renal cortex in streptozotocin-induced type Ⅱ diabetic mellitus and the regulation of valsartan. METHODS: The rat models of type Ⅱ diabetic rats were made. At the end of the 20th weeks,the kidneys were taken out to measure the expression of T?R-ⅠmRNA by RT-PCR. RESULTS: The expression of T?R-ⅠmRNA in diabetic rats without any therapy ( 0.72? 0.14) was higher than that in control ( 0.26? 0.12) (P

Objective To explore the medium effect of social support in process of attachment styles and coping styles on criminal juveniles and adolescents with mood disorders.Methods The survey used in the research included Experiences of Close Relationships Inventory (ECR),Social Support Revalued Scale(SSRS) and Coping Style Questionnaire(CSQ) conducted by three groups:177 criminal juveniles,80 adolescents with mood disorders and 163 normal teenagers.Results Firstly,there were significant differences in the avoidant attachment,attachment anxiety,objective support,subjective support,utilization of support,solving problem,rationalization,self-accusation and retreat among three groups (F=7.902,8.047,59.009,19.248,5.304,7.596,10.652,6.699,11.009;P＜0.05).Secondly,attachment avoidance had significant negative correlation with both utilization of support and help seeking behaviors in the group of mood disorders (r =-0.470,-0.350; P＜ 0.01).Similarly,avoidant attachment had significant negative correlation with both subjective support and utilization of support respectively (r=-0.232,-0.235 ; P＜0.01) in the group of criminal juveniles.The subjective support had significant positive correlation with solving problem (r=0.272,P＜0.01) and as well as the utilization of support with both solving problem and help seeking behaviors (r=0.258,0.424; P＜ 0.01).Attachment anxiety had significant negative correlation with objective support and had significant positive correlation with self-accusation respectively (r=-0.253,0.300;P＜0.01).Finally,utilization of support as a medium completely effect on the process of avoidant attachment and help seeking behaviors in the group of mood disorder and criminal juveniles.Moreover,subjective support and utilization of support as medium both affected a part in the process of avoidant attachment and solving problem for the group of criminal juveniles.Conclusion First,both adolescents with mood disorders and criminal juveniles have unsafe attachment mode,which are lacked social support and easy to take negative coping styles.Yet,the level of attachment avoidance and subjective support of criminal juveniles was found different compared to teenagers with mood disorder.Second,the attachment styles for both adolescents with mood disorders and criminal juveniles have impact on coping styles by the means of social support,but there were slightly different way.

Objective To optimize the processing condition of the extraction of Baphicacanthis cusiae ( Nees) Bremek. roots polysaccharides ( BCP) by ultrasound technology, and to provide the basis for the further development and study of BCP. Methods The extraction temperature, extraction time, liquid-solid ratio were used as the influence factors, and the yield of polysaccharides from Baphicacanthis cusiae roots was used as the evaluation index. On the basis of single-factor test, 3-factor and 3-level Box-Behnken test was designed for quadratic polynomial regression equation of the yield of polysaccharides. And then the response surface methodology was used for the optimization of process condition. Results The optimum extraction condition was as follows: extraction temperature was 60℃, extraction time was 35 min, and liquid-solid ratio was 24.5∶1 (V∶m, mL·g-1). Under the optimal condition, the yield of polysaccharides was 83.7 mg·g-1. Conclusion The method is simple, rapid and highly efficient, which will provide experimental basis for the development and application of Baphicacanthis cusiae roots polysaccharides.

Objective To assess the relationship between serum vitamin D and autoimmune thyroid disease.Methods Subjects included total 520 persons receiving regular health examination,and serum calcium,phosphorus,parathyroid hormone (PTH),thyroid peroxidase autoantibody (TPOAb) and 25-dihydroxy vitamin Ds was measured.The incidence of 25-dihydroxy vitamin D3 deficiency (≤30 μ g/L)was observed.The relationship between 25-dihydroxy vitamin D3 deficiency and autoimmune thyroid disease was analyzed.Results The serum 25-dihydroxy vitamin D3 of all the subjects was (24.47 ± 7.21) μ g/L,and the incidence of 25-dihydroxy vitamin D3 deficiency (≤30 μg/L) was 61.15％ (318/520),and the positive rate of TPOAb was 21.54％ (112/520).The proportion of TPOAb ＞ 50 kU/L or ＞ 100 kU/L in subjects with 25-dihydroxy vitamin D3≤30 μ g/L was higher than that in subjects with 25-dihydroxy vitamin D3 ＞ 30 μg/L [25.79％(82/318) vs.19.80％(40/202) and 9.43％(30/318) vs.4.46％(9/202)],and there was significant difference (P ＜ 0.05).The relationship between 25-dihydroxy vitamin D3 and TPOAb was assessed and showed significant inverse correlation (r =-0.13,P ＜0.05).Conclusions Vitamin D deficiency is very common in the population,and autoimmune thyroid disease is related with vitamin D deficiency,which may has impact on the body's immune regulation.Specific mechanism and whether vitamin D supplementation can intervene and treat autoimmune thyroid disease need further study.